28377426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 71331840

約数和(自身を除く): 42954414

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 239, 257, 462, 478, 514, 717, 771, 1434, 1542, 1673, 1799, 2629, 2827, 3346, 3598, 5019, 5258, 5397, 5654, 7887, 8481, 10038, 10794, 15774, 16962, 18403, 19789, 36806, 39578, 55209, 59367, 61423, 110418, 118734, 122846, 184269, 368538, 429961, 675653, 859922, 1289883, 1351306, 2026959, 2579766, 4053918, 4729571, 9459142, 14188713, 28377426]

約数ペア:

[(1, 28377426), (2, 14188713), (3, 9459142), (6, 4729571), (7, 4053918), (11, 2579766), (14, 2026959), (21, 1351306), (22, 1289883), (33, 859922), (42, 675653), (66, 429961), (77, 368538), (154, 184269), (231, 122846), (239, 118734), (257, 110418), (462, 61423), (478, 59367), (514, 55209), (717, 39578), (771, 36806), (1434, 19789), (1542, 18403), (1673, 16962), (1799, 15774), (2629, 10794), (2827, 10038), (3346, 8481), (3598, 7887), (5019, 5654), (5258, 5397)]